1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18
19 package jsp2.examples.simpletag;
20
21 import java.io.IOException;
22
23 import javax.servlet.jsp.JspException;
24 import javax.servlet.jsp.tagext.JspFragment;
25 import javax.servlet.jsp.tagext.SimpleTagSupport;
26
27 /**
28 * SimpleTag handler that accepts takes three attributes of type
29 * JspFragment and invokes then in a random order.
30 */
31 public class ShuffleSimpleTag extends SimpleTagSupport {
32 private JspFragment fragment1;
33 private JspFragment fragment2;
34 private JspFragment fragment3;
35
36 public void doTag() throws JspException, IOException {
37 switch ((int) (Math.random() * 6)) {
38 case 0:
39 fragment1.invoke(null);
40 fragment2.invoke(null);
41 fragment3.invoke(null);
42 break;
43 case 1:
44 fragment1.invoke(null);
45 fragment3.invoke(null);
46 fragment2.invoke(null);
47 break;
48 case 2:
49 fragment2.invoke(null);
50 fragment1.invoke(null);
51 fragment3.invoke(null);
52 break;
53 case 3:
54 fragment2.invoke(null);
55 fragment3.invoke(null);
56 fragment1.invoke(null);
57 break;
58 case 4:
59 fragment3.invoke(null);
60 fragment1.invoke(null);
61 fragment2.invoke(null);
62 break;
63 case 5:
64 fragment3.invoke(null);
65 fragment2.invoke(null);
66 fragment1.invoke(null);
67 break;
68 }
69 }
70
71 public void setFragment1(JspFragment fragment1) {
72 this.fragment1 = fragment1;
73 }
74
75 public void setFragment2(JspFragment fragment2) {
76 this.fragment2 = fragment2;
77 }
78
79 public void setFragment3(JspFragment fragment3) {
80 this.fragment3 = fragment3;
81 }
82 }